A heater assembly for an aerosol-generating system is provided, including: an electrically insulating support having an aperture; an electrical heating element disposed across the aperture in the electrically insulating support, being configured to heat a liquid aerosol-forming substrate to form an aerosol, and being substantially flat; capillary material, wherein a portion of the capillary material is in contact with the electrical heating element, and the capillary material is configured to convey the liquid aerosol-forming substrate to the electrical heating element; and two electrical contacts respectively connected to ends of the electrical heating element, the two electrical contacts supported by the electrically insulating support. An aerosol-generating system including an aerosol-generating device and a cartridge is also provided.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The heater assembly according to claim 1, wherein the one flat filament is curved along one or more dimensions thereof.
4. The heater assembly according to claim 1, wherein the single continuous piece of capillary material comprises first and second capillary materials, the first capillary material includes the pore size of 0.5 to 10 μm and the density of below 2 g/ml, and the second capillary material includes the pore size of 15 to 40 μm and the density of below 1 g/ml.
6. The heater assembly according to claim 4, wherein the first and the second capillary materials comprise different regions of a single continuous piece of capillary material.
7. The heater assembly according to claim 4, wherein the second capillary material is in fluid connection with the liquid aerosol-forming substrate.
8. The heater assembly according to claim 1, wherein the single continuous piece of capillary material has a shape of a truncated cone.
9. The heater assembly according to claim 8, wherein capillary material is in fluid connection with the liquid aerosol-forming substrate.
10. The heater assembly according to claim 1, wherein the capillary material is in fluid connection with the liquid aerosol-forming substrate.
11. The heater assembly according to claim 1, wherein the pore size is 4 μm and the density is 0.5 g/ml.
12. The heater assembly according to claim 1, wherein the pore size is 25 μm and the density is between 0.1 and 0.3 g/ml.
14. The aerosol-generating system according to claim 13, wherein the pore size or porosity of the portion of the capillary material in contact with the electrical heating element is less than the pore size or porosity of the another portion of the capillary material separated from the electrical heating element by the portion of the capillary material in contact with the electrical heating element.
15. The aerosol-generating system according to claim 13, wherein the cartridge is between the main body and the mouthpiece.
16. The aerosol-generating system according to claim 13, wherein the one flat filament is curved along one or more dimensions thereof between the two electrical contacts respectively connected to ends of the one flat filament.
17. The aerosol-generating system according to claim 13, wherein the single continuous piece of capillary material has a shape of a truncated cone.
18. The aerosol-generating system according to claim 13, wherein the single continuous piece of capillary material comprises first and second capillary materials, the first capillary material includes the pore size of 0.5 to 10 μm and the density of below 2 g/ml, and the second capillary material includes the pore size of 15 to 40 μm and the density of below 1 g/ml.
20. The aerosol-generating system according to claim 19, wherein the single continuous piece of capillary material comprises first and second capillary materials, the first capillary material includes the pore size of 0.5 to 10 μm and the density of below 2 g/ml, and the second capillary material includes the pore size of 15 to 40 μm and the density of below 1 g/ml.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
May 18, 2020
November 19, 2024
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.